You need to know what RDA is! You won’t believe it!
Posted on September 28 2018
Do you know what this stands for? It doesn't stand for Recommended Dietary Allowance! 😆 It's definitely not for consumption!
What does it mean?
What it does mean is Relative Dentine Abrasitivity. Basically, it's a scale used to determine abrasiveness of toothpastes and powders. Highly abrasive products can cause damage to the tooth enamel.
How is it tested?
In a nutshell, acrylic plates are brushed in a brushing machine in a water/toothpaste or powder mixture for up to 6 hours. That's a lot of brushing! The degree of loss is measured and a RDA is given.
What is the scale?
0-70 Low abrasive
71-100 Medium abrasive
101-150 Highly abrasive
151-250 Regarded as harmful limit by FDA
Do you know what the RDA of your daily toothpaste? You most likely won't as toothpastes or whitening powders are not labelled.
Here are some examples* of toothpastes and RDA values:
4 Toothbrush with plain water
7 Plain baking soda
68 Colgate Regular
70 Colgate Total
77-79 Activated Charcoal
124 Colgate Whitening
200 Colgate's 2 in 1 Control/Whitening
142 Colgate Total Whitening
How does charcoal fit into the scale?
Activated charcoal falls in the 77-79 RDA scale which makes it a gentler teeth whitening choice than many of the whitening toothpastes!
It's important to remember that every toothpaste whether tartar control or whitening will be more abrasive so starting with choosing a lower RDA toothpaste, a soft bristle brush and a lower RDA whitening product.
So you can be confident that you're getting a natural, gentle, easy & fast alternative to teeth whitening with Charcoal Rescue’s Charcoal Teeth Whitening Powder!
What does it mean for you?
✔️Safe on enamel
✔️Safe abrasive score
✔️Naturally safe way to polish and brighten teeth